Mastering a bouldering conversion chart helps you translate grades across different systems, compare problems, and set realistic training targets. A reliable chart turns confusing grade labels into clear, actionable goals.
Use this guide to understand the most common V-scale, Font grade, and route rating conversions while building a consistent approach to progression.
| V Grade | Font Grade | YDS (USA) | Suggested Training Focus |
|---|---|---|---|
| V0 | 3+ | 5C | Basic footwork and balance fundamentals |
| V2 | 4 | 5C–6A | Dynamic movement and simple sequences |
| V4 | 6A | 6B | Intermediate power and endurance circuits |
| V6 | 6B+ | 6B+ | Technical power and endurance combinations |
| V9 | 7A | 7A | Advanced power-to-weight and project training |
| V12 | 7C+ | 7B+ | High-level power and campus block programming |
Understanding V Scale Grades
The V scale is common in North American gyms and tracks bouldering difficulty by relative problem-solving demand.
Each V grade increment generally reflects longer sequences, harder moves, and greater technical demands.
How to Read V Grades
Use the conversion chart to match V grades to Font or YDS ratings, then compare problems on different walls.
Font Grade System Explained
Font grades, popular in Europe, use plus and minus symbols to refine difficulty within a number class.
Higher Font numbers correspond closely to higher V grades, with plus and minus modifiers indicating subtle jumps.
Translating Font to V
Check the table to see how Font 6A aligns with V4, helping you set targets when training abroad or on mixed walls.
YDS and Route Rating Context
YDS ratings describe climbing difficulty on a numeric and letter scale, useful for sport and big wall contexts as well as bouldering problems.
Comparing YDS with V and Font grades lets you gauge progression across different gyms, outdoor areas, and disciplines.
Using YDS in Training Logs
Record YDS alongside V and Font grades to track cross-system improvements and maintain balanced training blocks.
Technical Progress Planning
A conversion chart supports structured training by aligning sessions to a consistent grade reference.
Set micro goals such as moving from V2 to V4 over eight weeks, using the table to select problems that match your targets.
Workout Structure by Grade
At V4–V6, focus on power endurance circuits, while V7 and above often require dedicated strength and project-specific strategies.
Building a Personalized Grade Roadmap
Treat the bouldering conversion chart as a flexible guide rather than a rigid rulebook.
- Anchor your current level using multiple grading systems on the same wall.
- Set short-term targets that cross two or three grade bands.
- Track volume, recovery, and failure rates for each training block.
- Use outdoor visits to test how indoor grades translate to real rock angles.
- Adjust your roadmap based on feedback from sessions, not just hardest attempts.
- Share progress with training partners to calibrate expectations and routes.
FAQ
Reader questions
Can I rely on a single bouldering conversion chart across all gyms? Use the chart as a reliable reference, but expect slight variation because each gym sets angles, volume, and holds differently. Why do V grades sometimes skip plus or minus modifiers?
Gym-specific ratings can compress or expand ranges, so the chart shows typical overlaps rather than fixed boundaries.
Should I train exclusively at my target grade on every session?
Balance training across easier problems for technique and harder attempts for performance, using the conversion table to plan blocks.
How often should I update my expectations on the conversion chart?
Revisit the chart every few months as your strength improves, noting which grade transitions feel consistent and which remain inconsistent.